Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.
Metynnis cuiaba is a recently-described fish species from western Brazil. There are no known introductions of this species outside of its native range, so its history of invasiveness is uncertain. However, members of the Metynnis genus (species uncertain) have been collected beyond their native range in Florida, where their status is listed as locally established. There is little information available about the biology, distribution, and use of M. cuiaba although it does not appear to be in trade. The climate match of M. cuiaba with the contiguous United States is low, with only southern Florida and the southern tip of Texas having a medium match. The certainty of this risk assessment is low due to limited information and taxonomic uncertainty about this species. Overall risk for Metynnis cuiaba is uncertain.